digplanet beta 1: Athena
Share digplanet:

Agriculture

Applied sciences

Arts

Belief

Business

Chronology

Culture

Education

Environment

Geography

Health

History

Humanities

Language

Law

Life

Mathematics

Nature

People

Politics

Science

Society

Technology

Cunningham downhaul

In sailing, a cunningham or cunningham's eye is a type of downhaul used on a Bermuda rigged sailboat to change the shape of a sail. Sailors also often refer to the cunningham as the "smart pig"–a play on words "cunning ham" that can be found in sailing forums.

It is named after its inventor, Briggs Cunningham, a victorious America's Cup skipper and yacht builder.[1]

The cunningham differs from a typical downhaul in the way that it attaches to the sail. The system usually consists of a line which is secured at one end to the mast or boom below the foot of the mainsail. It is then passed through a cringle in the luff of the sail near the foot, but above the tack, and then led down on the other side to a fitting on the mast or boom or on deck.

The tension in the luff of the sail is adjusted using a combination of the halyard and the cunningham (where fitted). The primary advantage of adjusting the cunningham is the speed and ease with which the luff tension can be changed while sailing or racing. By either hauling or easing the line, the tension in the luff can be changed, thereby shifting the point of maximum draft of the sail forward or aft respectively, optimizing sail shape—and therefore—performance. It is a fine control which is used more frequently on racing sailboats than on cruising or day-sailing boats.[2]

References[edit]

  1. ^ Barbara Lloyd (July 5, 2003). "Briggs Cunningham, 96, Racecar Pioneer and Sailing Champ". Obituaries. The New York Times. Retrieved 5 March 2012. 
  2. ^ "Sail shape". U.S. Sailing. Retrieved 15 August 2013. 

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Cunningham_(sailing) — Please support Wikipedia.
This page uses Creative Commons Licensed content from Wikipedia. A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia.
24486 videos foundNext > 

The Cunningham, the Halyard and Luff tension

Sailing Instructional Video. Discuss this video and anything sailing on my forum www.anything-sailing.com. A small video that shows what is the Cunningham, t...

Advanced Sailing Lessons : Sail Shape: Advanced Sailing Video Lessons

Learn techniques for getting the best sail shape in this free video on sailing tips and instruction. Expert: Russ Ansley Bio: Russ Ansley began his sailing c...

How to Sail with a Cunningham

Captain John with 25+ years of experience shows you the no-nonsense cruising skills you need for safer sailing worldwide. Visit his website at https://www.sk...

DynaSim by WB-Sails - main cunningham

Adjusting the main cunningham in DynaSim (c) WB-Sails 2005.

Hervé Cunningham entrevistado por LX Sailing

Como vai ser o treino de hoje, nada melhor do que falar com o treinador da equipa portuguesa.

Steam V Sail with Dulling Summer soundtrack by Brian Cunningham

The paddle steamer Waverley passes a sailing ship on the river Clyde near to Greenock.

cunningham sail trimming 01.AVI

cunningham sail trimming 04.AVI

cunningham sail trimming 03.AVI

cunningham sail trimming 06.AVI

24486 videos foundNext > 

We're sorry, but there's no news about "Cunningham (sailing)" right now.

Loading

Oops, we seem to be having trouble contacting Twitter

Talk About Cunningham (sailing)

You can talk about Cunningham (sailing) with people all over the world in our discussions.

Support Wikipedia

A portion of the proceeds from advertising on Digplanet goes to supporting Wikipedia. Please add your support for Wikipedia!